Trouble Shooting Your ATV

My ATV is not charging

Make sure the fuse in ATV is good. Check the wires behind the fuse holder and the charging jack. Sometimes they come loose.

My ATV will not start

Make sure you have fuel getting to the carburetor. Check the spark plug for sign of wear and tear. Try using starting fluid to aid the starting process, spray a little into the carburetor. If it starts by spraying starting fluid and dies as soon it runs out of starting fluid then this means there is no fuel getting to the engine. Check the carburetor. Or there might be vaccum leak in the piston area. If your piston is badly scratched up due to the lack of oil, then you need to replace piston and rings to get compression back.

My ATV starts sometimes but often times it does not

Is the spark plug dirty? Clean or replace it if it's dirty Make sure the carburetor and the intake manifold are tightly secured to the engine. Check the gasket between the carburetor and intake manifold. Sometimes the gasket is bad and caused leak. Solution: replace new gasket or just toss the bad gasket away and screw carburetor back. Try to start again.

My ATV bogs out when I give it gas

Adjust the screw with the spring on the side of the carburetor. Clockwise to reduce gas flow and counterclockwise to allow more gas follow. This problem often occurs because your carburetor is flooding. Give time for it to warm up. If none of these steps work then you must replace your carburetor.

My ATV is leaking oil from the carburetor

Check the gasket between the carburetor and intake manifold. It might be bad or maybe the carburetor came loose due to engine vibration.

How do I adjust the carburetor?

The brass color screw located below on the side of the carburetor, next to the choke lever is for the fuel and air mixture. Start by turning this screw (clockwise) until it stops. Don't turn it in tight, just until it stops. Next, turn the screw out two full turns (counter-clockwise). This is the factory setting. You should be able to start and operate the ATV with this setting. Once you have it running, you can adjust it. Never turn the screw more than 1/8 of a turn at a time. Turning it in too much will cause the motor to run lean at full speed and may burn a piston. Also, running too lean will cause a loss of low end power. Once you get the mixture set you can adjust the idle, it should be low enough that the engine doesn't vibrate. Finally make sure you have the choke lever down completely after the ATV is started and warmed up.